Class information for:
Level 1: MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
33 3       OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY 112980
78 2             IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL FIBER COMMUNICATION 27533
7184 1                   MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION 1423

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MODULATION FORMAT authKW 866075 6% 44% 88
2 DIFFERENTIAL PHASE SHIFT KEYING DPSK authKW 860501 7% 38% 103
3 FORMAT CONVERSION authKW 649919 3% 65% 45
4 DUOBINARY authKW 505280 3% 62% 37
5 OPTICAL FIBER COMMUNICATION authKW 329365 13% 8% 182
6 RETURN TO ZERO RZ authKW 295607 2% 46% 29
7 DUOBINARY MODULATION authKW 293112 1% 88% 15
8 OPTICAL DUOBINARY authKW 271291 1% 88% 14
9 DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DQPSK authKW 201963 2% 40% 23
10 OPTICAL COMMUNICATION authKW 191585 12% 5% 175

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 47477 75% 0% 1067
2 Engineering, Electrical & Electronic 19009 67% 0% 951
3 Telecommunications 11483 24% 0% 347
4 Physics, Applied 2777 30% 0% 426
5 Architecture 7 0% 0% 2
6 Computer Science, Information Systems 1 1% 0% 12
7 Music 0 0% 0% 1
8 Engineering, Ocean 0 0% 0% 1
9 Computer Science, Hardware & Architecture -0 0% 0% 3
10 Transportation Science & Technology -1 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PL ELE OMAGNET TELECOMMUN GRP 128848 1% 73% 8
2 LEHRSTUHL NACHRICHEN UBERTRAGUNGSTECH 66439 0% 100% 3
3 OPT COMMUN GRP SUPER TECN 61615 1% 35% 8
4 LUCENT TECHNOL 29765 5% 2% 66
5 LEHRSTUHL HOCHFREQUENTZTECH 29527 0% 67% 2
6 NETWORK INNOVAT S 25671 1% 6% 19
7 NETWORKS DEVICES S 24911 0% 38% 3
8 RADIO ENGN 22772 2% 4% 26
9 ADV TECHNOL WIRELINE NETWORKING BUSINESS UNI 22146 0% 100% 1
10 ALCATEL STAND ELEKTR LORENZ AKTIENGESELL 22146 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE PHOTONICS TECHNOLOGY LETTERS 172235 25% 2% 358
2 JOURNAL OF LIGHTWAVE TECHNOLOGY 74221 14% 2% 204
3 ELECTRONICS LETTERS 13103 11% 0% 154
4 OPTICAL FIBER TECHNOLOGY 12915 2% 2% 27
5 OPTICS EXPRESS 8553 8% 0% 118
6 IET OPTOELECTRONICS 7698 1% 3% 12
7 OPTICS COMMUNICATIONS 5001 5% 0% 78
8 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 4142 2% 1% 28
9 CHINESE OPTICS LETTERS 3580 2% 1% 22
10 IEE PROCEEDINGS-OPTOELECTRONICS 2661 1% 1% 10

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 MODULATION FORMAT 866075 6% 44% 88 Search MODULATION+FORMAT Search MODULATION+FORMAT
2 DIFFERENTIAL PHASE SHIFT KEYING DPSK 860501 7% 38% 103 Search DIFFERENTIAL+PHASE+SHIFT+KEYING+DPSK Search DIFFERENTIAL+PHASE+SHIFT+KEYING+DPSK
3 FORMAT CONVERSION 649919 3% 65% 45 Search FORMAT+CONVERSION Search FORMAT+CONVERSION
4 DUOBINARY 505280 3% 62% 37 Search DUOBINARY Search DUOBINARY
5 OPTICAL FIBER COMMUNICATION 329365 13% 8% 182 Search OPTICAL+FIBER+COMMUNICATION Search OPTICAL+FIBER+COMMUNICATION
6 RETURN TO ZERO RZ 295607 2% 46% 29 Search RETURN+TO+ZERO+RZ Search RETURN+TO+ZERO+RZ
7 DUOBINARY MODULATION 293112 1% 88% 15 Search DUOBINARY+MODULATION Search DUOBINARY+MODULATION
8 OPTICAL DUOBINARY 271291 1% 88% 14 Search OPTICAL+DUOBINARY Search OPTICAL+DUOBINARY
9 DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DQPSK 201963 2% 40% 23 Search DIFFERENTIAL+QUADRATURE+PHASE+SHIFT+KEYING+DQPSK Search DIFFERENTIAL+QUADRATURE+PHASE+SHIFT+KEYING+DQPSK
10 OPTICAL COMMUNICATION 191585 12% 5% 175 Search OPTICAL+COMMUNICATION Search OPTICAL+COMMUNICATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 28128 DIRECTLY MODULATED LASER//COMPENSATING DEVICE//FM AM CONVERSION
2 18475 CROSS PHASE MODULATION//WAVELENGTH DIVISION MULTIPLEXING//FOUR WAVE MIXING
3 1032 COHERENT DETECTION//COHERENT COMMUNICATIONS//OPT NETWORKS GRP
4 3566 DISPERSION MANAGEMENT//SOLITON TRANSMISSION//DISPERSION MANAGED SOLITONS
5 21124 OPTICAL PERFORMANCE MONITORING//OPTICAL PERFORMANCE MONITORING OPM//OPTICAL SIGNAL TO NOISE RATIO OSNR
6 8145 OPTICAL PARAMETRIC AMPLIFIER//FIBER OPTICAL PARAMETRIC AMPLIFIER//FOUR WAVE MIXING FWM
7 7799 POLARIZATION MODE DISPERSION PMD//POLARIZATION MODE DISPERSION//OPTICAL FIBER POLARIZATION
8 21055 HOMODYNE CROSSTALK//OPTICAL CROSS CONNECT//BIDIRECTIONAL TRANSMISSION
9 11784 OPTICAL PHASE LOCKED LOOPS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL PHASE LOCKED LOOPS OPLLS
10 5902 CLOCK RECOVERY//ALL OPTICAL CLOCK RECOVERY//NONLINEAR OPTICAL LOOP MIRROR

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